Back to glossary
Ectomorph (Somatotype)
The ectomorph is one of the three classic body types defined by William H. Sheldon – later refined in the Heath–Carter somatotype model. Ectomorphs are typically characterized by a slim build, long limbs, low body fat, and often a fast metabolic rate.
They tend to appear wiry and energetic but may also be more sensitive to external stressors. This somatotype is largely genetically determined and may influence individual recommendations for training and nutrition.
👉 Other body types: Mesomorph (athletic) and Endomorph (stocky).